JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. To Set Up a Clash Detection Job Select Modeling > Analyze > Clash Detection > Clash Detection to open the Clash Detection dialog. Click the New icon. A new entry is added to the job list with the default name, Untitled Job. Untitled Job is highlighted and ready to be renamed. Give the new job entry a descriptive name. Note: Once you create a job, select the clash criteria and suppression rules, you can run the clash detection job. Parent topic: Clash Detection Dialog